Presentation is loading. Please wait.

Presentation is loading. Please wait.

Splash Screen. Lesson Menu Five-Minute Check (over Lesson 9–8) Main Idea and Vocabulary Example 1:Compare Fractions Example 2:Compare Fractions Using.

Similar presentations


Presentation on theme: "Splash Screen. Lesson Menu Five-Minute Check (over Lesson 9–8) Main Idea and Vocabulary Example 1:Compare Fractions Example 2:Compare Fractions Using."— Presentation transcript:

1 Splash Screen

2 Lesson Menu Five-Minute Check (over Lesson 9–8) Main Idea and Vocabulary Example 1:Compare Fractions Example 2:Compare Fractions Using the LCD Example 3:Real-World Example Compare Fractions

3 Main Idea/Vocabulary I will compare fractions using common denominators. common denominator least common denominator (LCD)

4 Example 1 Compare Fractions Compare and using models and the least common denominator. 2 3 2 4 The models show that >. 2 3 2 4

5 Example 1 Compare Fractions Step 1 Find the LCM of the denominators. The LCM of 3 and 4 is 12. Step 2 Find the equivalent fractions with a denominator of 12. 2 3 8 12 = THINK 3 × 4 = 12, 2 × 4 = 8 2 4 6 12 = THINK 4 × 3 = 12, 2 × 3 = 6

6 Example 1 Compare Fractions Step 3 Compare the numerators. Since 8 > 6, then >. 8 12 6 Answer: So, >. 2 3 2 4

7 1.A 2.B 3.C Example 1 A. B. C.

8 Example 2 Compare Fractions Using the LCD Compare and using models and the least common denominator. 3 4 7 8 Step 1 Find the LCM of the denominators. The LCM of 4 and 8 is 8. Note that multiplying 4 by 8 gives a common denominator of 32, which is not the LCD, 8.

9 Example 2 Compare Fractions Using the LCD Step 2 Find an equivalent fraction with a denominator of 8 for each fraction. 3 4 = THINK 4 × 2 = 8, 3 × 2 = 6 7 8 = THINK 8 × 1 = 8, 7 × 1 = 7 6 8 7 8 Step 3 Compare the numerators. Since 6 < 7, then <. 6 8 7 8 Answer: So, <. 3 4 7 8

10 1.A 2.B 3.C Example 2 A. B. C.

11 Example 3 Idalia made 1 out of 2 baskets and Susan made 3 out of 5 baskets. Who made a greater fraction of baskets? The models show that <. 1 2 3 5

12 Example 3 Step 1 Find the LCM of the denominators. The LCM of 2 and 5 is 10. Step 2 Find an equivalent fraction with a denominator of 10 for each fraction. 1 2 5 10 = THINK 2 × 5 = 10, 1 × 5 = 5 3 5 6 10 = THINK 5 × 2 = 10, 3 × 2 = 6

13 Example 3 Step 3 Compare the numerators. Since 5 < 6, then <. 5 10 6 Answer: So, <. Susan made a greater fraction of baskets. 1 2 3 5

14 1.A 2.B 3.C Example 3 A.Patricia B.Merlin C.They both ate the same amount. Patricia ate 4 out of 9 apples. Merlin ate 2 out of 4 apples. Who ate a larger fraction of apples?

15 End of the Lesson End Lesson

16 Resources Five-Minute Check (over Lesson 9–8) Image Bank Math Tool Chest Compare Fractions

17 1.A 2.B 3.C 4.D Five Minute Check 1 (over Lesson 9–8) A.2 hours 15 minutes B.2 hours 45 minutes C.3 hours 30 minutes D.4 hours 15 minutes Use any strategy to solve. Haloke practiced the trumpet for 1 hour on Monday. He decides to increase his practice time by 15 minutes each day. How long will he practice on the sixth day?

18 End of Custom Shows


Download ppt "Splash Screen. Lesson Menu Five-Minute Check (over Lesson 9–8) Main Idea and Vocabulary Example 1:Compare Fractions Example 2:Compare Fractions Using."

Similar presentations


Ads by Google